.payment-container {
    max-width: 800px;
    margin: 40px auto;
    font-family: Pretendard, sans-serif;
    color: #333;
    padding: 0 20px;
  }
  
  .title {
    text-align: center;
    font-size: 28px;
    margin-bottom: 30px;
    font-weight: bold;
  }
  
  .tab-buttons {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
  }
  
  .tab-btn {
    padding: 12px 24px;
    margin: 0 10px;
    font-size: 16px;
    background-color: #f0f0f0;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: 0.3s;
  }
  
  .tab-btn.active {
    background-color: #007bff;
    color: #fff;
  }
  
  .tab-content {
    display: none;
  }
  
  .tab-content.active {
    display: block;
  }
  
  .plan-card, .point-card {
    background: #f9f9f9;
    padding: 25px;
    border-radius: 10px;
    margin-bottom: 30px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
  }
  
  .plan-card h3, .point-card h3 {
    margin-top: 0;
    font-size: 20px;
    font-weight: bold;
  }
  
  .price {
    margin: 15px 0;
    font-size: 18px;
    color: #28a745;
    font-weight: bold;
  }
  
  .pay-btn {
    padding: 10px 20px;
    background-color: #28a745;
    border: none;
    color: white;
    font-size: 16px;
    border-radius: 6px;
    cursor: pointer;
  }
  
  .point-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 15px 0;
  }
  
  label {
    font-size: 16px;
  }
  

  @media (max-width: 768px) {
    .payment-container {
      padding: 0 10px;
    }
  
    .title {
      font-size: 22px;
    }
  
    .tab-btn {
      flex: 1;
      padding: 10px;
      font-size: 14px;
      margin: 0 4px;
    }
  
    .plan-card, .point-card {
      padding: 18px;
    }
  
    .plan-card h3, .point-card h3 {
      font-size: 18px;
    }
  
    .price {
      font-size: 16px;
    }
  
    .pay-btn {
      width: 100%;
      padding: 12px;
      font-size: 15px;
    }
  
    label {
      font-size: 14px;
    }
  }
  
  @media (max-width: 480px) {
    .tab-buttons {
      flex-direction: column;
      gap: 10px;
    }
  
    .tab-btn {
      width: 100%;
      font-size: 14px;
      padding: 12px;
    }
  
    .point-options {
      gap: 8px;
    }
  }